def find_person(dict_users, strU):
    if strU in dict_users:
        return dict_users[strU]
    else:
        return 'Not Found'


if __name__ == "__main__":
    users = ['xiaoyun', 'xiaohong', 'xiaoteng', 'xiaoyi', 'xiaoyang']
    QQ = [88888, 5555555, 11111, 12341234 , 1212121]
    dict_users = dict(zip(users, QQ))
    strU = input()
    print(find_person(dict_users, strU))